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Message #76274
[Bug 1358871] Status changed to Confirmed
This change was made by a bot.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1358871
Title:
USB 3.0 connection is unreliable + xHCI xhci_drop_endpoint called with
disabled ep
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
On Utopic 3.16.0-9-generic x86_64 kernel:
I'm using the Intel DQ77KB desktop board [1]. Apart from the board and
some disks and memory the computer has no other hardware. The board
has four usb 3.0 ports on the back. Using any of those ports, with my
USB 3.0 hub, with my phone triggers a swarm of messages like this:
xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep
ffff880354156900
If I connect the 3.0 hub via USB 2.0 hub instead, or use the 2.0 hub
directly all of the problems go away.
[1] http://www.intel.com/content/www/us/en/motherboards/desktop-
motherboards/desktop-board-dq77kb.html
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-9-generic 3.16.0-9.14
ProcVersionSignature: Ubuntu 3.16.0-9.14-generic 3.16.1
Uname: Linux 3.16.0-9-generic x86_64
ApportVersion: 2.14.6-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: zyga 3468 F.... pulseaudio
/dev/snd/controlC1: zyga 3468 F.... pulseaudio
/dev/snd/controlC0: zyga 3468 F.... pulseaudio
CurrentDesktop: Unity
Date: Tue Aug 19 20:10:25 2014
HibernationDevice: RESUME=UUID=2ecb937b-2594-44f1-b19d-a601fa6a8982
InstallationDate: Installed on 2014-01-15 (215 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140115)
IwConfig:
eth0 no wireless extensions.
eth1 no wireless extensions.
lo no wireless extensions.
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-9-generic.efi.signed root=UUID=3530e29d-4954-45ea-b3d7-a103ac745265 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.16.0-9-generic N/A
linux-backports-modules-3.16.0-9-generic N/A
linux-firmware 1.132
RfKill:
SourcePackage: linux
SystemImageInfo:
current build number: 0
device name:
channel: daily
last update: Unknown
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/08/2013
dmi.bios.vendor: Intel Corp.
dmi.bios.version: KBQ7710H.86A.0052.2013.0708.1336
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DQ77KB
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG40294-401
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrKBQ7710H.86A.0052.2013.0708.1336:bd07/08/2013:svn:pn:pvr:rvnIntelCorporation:rnDQ77KB:rvrAAG40294-401:cvn:ct3:cvr:
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References